Heater Blows Cold

[C-friggin-5]

hello, new to the board. I have a 2000 silverado and it doesnt blow hot air. I've checked some things already, (thermostat, coolant, new HVAC Panel, fuses, filters) and all good so far. Everything works great it just doesnt get hot.

One of the heater core hoses going into the firewall is warm to the touch, the other isn't. Do i have a stuck valve someplace???

 

Thanks for any help.

[2000DV4.8]

Sounds like you have a clogged heater core, either with air, or some kind of blockage. I would try flushing it out with a garden hose, that temporarily fixed mine, but air is still somehow getting into my coolant system.

[C-friggin-5]

Sounds like you have a clogged heater core, either with air, or some kind of blockage. I would try flushing it out with a garden hose, that temporarily fixed mine, but air is still somehow getting into my coolant system.

 

i think so too. i just tried to flush it out and my garden hoses have ice clogging them up.

 

so as soon as i can get those unclogged, i'm going to try to flush it out again. i hate winter.....

 

 

.

[C-friggin-5]

i got it flushed today! it works great again.

 

DV2000NJ thanks for the tip.